Has anyone ever had their hotmail account blocked with a mobile number request in order to unblock it?

This is the message MY PARTNER AND I get when I try and sign-in to help my hotmail akun:

Your account has become blocked
How come quartz called you discovering this
Someone often have used your current account to mail out a lot of junk mail messages (or a thing else of which violates the particular Windows Survive Terms of Service).
We’re here to help you get a person’s account backside.
What must you do
We’ll ask you to provide us which includes a mobile telephone number where we are able to send an individual a proof code and we’ll include this telephone number to your Windows Dwell profile pertaining to future work with.After a person enter this code, you may change the password along with sign in.
We now have cleaned the account settings
Often users get these because other people has access for your requirements and are choosing it devoid of your knowledge to post spam.To protect you whilst your contacts, we’ve eliminated any Hotmail auto-replies or perhaps linked accounts possibly you have had.

Are these claims a legit message Must i give my mobile number

As stated here
http://thepcsecurity.com/recover-hotmail-email-account-retrieve-lost-hacked-password/ It’s normal pertaining to hotmail to accomplish so if you are account is compromised.